Sewer-pipe connection.



No. 706,298. Pafented Aug. 5, I902.

F. w. CARLSON.

SEWER PIPE CONNECTION.

(Application filed Mar. 21, 1902.)

2 Shaets-Sheet I.

(No Model.)

WITNESSES:

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No. 706,298. Patented Aug. 5, I902.

F. w. CARLSON.

SEWER PIPE CONNECTION.

Applicafiion filed Mar. 21, 1902.)

2 Sheets Sheet 2.

(N0 ModeI.)

WITNESSES @Zur IN VE N TOR 7/45m45m A TTOHNE Y In: News wsrzns,cn.worauwq. wnsumcmn, n, c

llNTTEn STATES ATENT OFFICE.

FRANK W. CARLSON, OF CHICAGO, ILLINOIS.

SEWER-PIPE CONNECTION.

SPECXFIGATION forming part of Letters Patent No. 706,298, dated August5, 1902.

Application filed March 21,1902. Serial No. 99,283. (No model) T0 ztZZwhom, it may concern.-

Be it known that I, FRANK W. CARLSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Sewer-Pipe Connections;and I do declare the following to be afulLclear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this specification.

My invention relates to sewer-pipe connections, and has for its generalobject the production of a device adapted particularly for making a gasand water tight junction between sewer and soil piping, or the inventionmay be employed as a hand-hole through which deposits within an angle orturn of a sewer-pipe may be cleaned out.

My invention has for its special object the construction of a connectionof the nature stated that will comprise the fewest number of easily andcheaply manufacturedparts designed with reference to the protection ofthe gaskets and packing in'contact with the two pipes joined from waterand dirt likely to reach them from the outside.

Each constituent element of my invention is described in detail and itsindividual office, together with the mode of operation of the whole,fully explained hereinbelow.

I accomplish the objects above set forth by employing the several'partsand associating them one with another, as illustrated in theaccompanying drawings, of which- Figure 1 represents a top plan view;Fig. 2, a vertical section on the line X X of the first figure, and Fig.3 shows asectional view of the invention out upon the plane indicated bythe line Y Y of the first figure.

Like'numerals refer to like parts throi'ighout.

Consideringthe drawings,-numeral 1 marks an earthenware sewer-pipe, theend portion thereof being shown as having the internal annular shoulder2. Immediately next the shoulder isthe gasket 3, of any selectedpattern, material, or form. Upon the gasket rests the base ring-flange 4of the main congastight contact with both parts.

maining L-bolts and nuts shown in Fig. 1 are nection orcasting 5. Asusually constructed, the overhanging exterior flange 6 of the mainconnection is turned slightly downwardly in the manner illustrated.Flange 6 thus projecls all around over the head of the sewerpipe andwill effectually shed all water or dirt falling upon it, therebyprotecting the gasket from external deteriorating foreign substances. Atquadrantal points (see Figs. 1 and 2) wall-braces are formed on theouter wall of the main connection 5. Two of these braces or extensionsare shown and are designated by numbers 7 and S. Adjacent to theoutermost points of the wall-braces bolt-holes 9 and 10 are boredthrough the flange 6, which is ordinarily thickened at such points andprovided with nut-rests 11 and 12 and retaining-lugs 13 and 14, whichprevent the L-bolts 15 and 16 from being forced outwardly whentightened. The bends of the L -bolts are passed beneath the externalshoulder 17 of pipe 1, and it is believed to be clear that uponsettingup the nuts 18 19 and 20 21 the main connection 5 will besecurely coupled witlrpipe 1, the gasket 3 being at the same timecompressed all around into a water and The rereferred to bynumbers 22 23and 2a 25.

That portion of the main connection which may be regarded as its top isdesignated by number 26 and has a central opening, the downwardly andoutwardly inclined edge of which opening is marked 27. The top 26 isrelatively thicker than the overhanging flange (i, and the circularcavity therein, of which the inclined wall portion is referred to bynumber 28 and the vertical portion by number 28, constitutes the base ofa stufling-box, the complcmental element or gland 29 being shown inallthe figures. The interior surface 30 of gland 29 is inclineddownwardly and inwardly, and its upper edge is rounded customarily, asillustrated. My purpose in thus inclining the surface 30 is to permit asoil-pipe to enter the openings even if the pipe be slightly inclined tothe vertical, as occasionally happens.

The packing within the stuffing-box is des ignated by number 31, and toprotect the packing I use a divided washer 32, which is not a continuousband, but is cut at the point 33 in order that it may be passed over thehead or end rim of a pipe. The washer is slightly smaller in circularmeasure than the opening through the stufling-box and encircles a pipetightly. When the gland 29 is a forced down by the four or morestud-bolts 34, 35, 36, and 37, the washer compresses the packing firmlyabout an entering-pipe, making a water and gas tight joint and at thesame time protecting the packing 31 from injury due to externalexposure.

Having thus described my invention, what I I claim, and desire to secureby Letters Patsaid packing may be pressed against the interior of thelarger pipe, the said main connection having a downwardly-inclinedoverhanging portion projecting circularly over the open end of thelarger pipe and adapted to protect the end from falling dirt ormoisture, the said main connection having a central opening and anupwardly-extended central portion constituting the base of astuffing-box, the complemental element 29 of the stuffing-box, a ring ofpacking within the box and bolts connecting the said element 29 and theupwardly-extended central portion ofthe main connection whereby thepacking within the stutfing-box may be forced against a pipe ofrelatively smaller diameter passing through it, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK WV. OARLSON. Vitn esses:

JOHN ANDERSON, C. P. FRYE.

